PMO OpenIR
Gas kinematics and star formation in the filamentary molecular cloud G47.06+0.26
Xu, Jin-Long1,5; Xu, Ye2,6; Zhang, Chuan-Peng1,5; Liu, Xiao-Lan1,5; Yu, Naiping1,5; Ning, Chang-Chun3,5; Ju, Bing-Gang4,6
2018-01-05
Source PublicationASTRONOMY & ASTROPHYSICS
ISSN1432-0746
Volume609Pages:10
Corresponding AuthorXu, Jin-Long(xujl@bao.ac.cn)
AbstractAims. We performed a multi-wavelength study toward the filamentary cloud G47.06 + 0.26 to investigate the gas kinematics and star formation. Methods. We present the (CO)-C-12 (J = 1-0), (CO)-C-13 (J = 1-0) and (CO)-O-18 (J = 1-0) observations of G47.06 + 0.26 obtained with the Purple Mountain Observation (PMO) 13.7 m radio telescope to investigate the detailed kinematics of the filament. Radio continuum and infrared archival data were obtained from the NRAO VLA Sky Survey (NVSS), the APEX Telescope Large Area Survey of the Galaxy (ATLASGAL), the Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSE) survey, and the Multi-band Imaging Photometer Survey of the Galaxy (MIPSGAL). To trace massive clumps and extract young stellar objects in G47.06 + 0.26, we used the BGPS catalog v2.0 and the GLIMPSE I catalog, respectively. Results. The (CO)-C-12 (J = 1-0) and (CO)-C-13 (J = 1-0) emission of G47.06 + 0.26 appear to show a filamentary structure. The filament extends about 45' (58.1 pc) along the east-west direction. The mean width is about 6.8 pc, as traced by the (CO)-C-13 (J = 1 0) emission. G47.06 + 0.26 has a linear mass density of similar to 361.5 M-circle dot pc(-1). The external pressure (due to neighboring bubbles and HII regions) may help preventing the filament from dispersing under the effects of turbulence. From the velocity-field map, we discern a velocity gradient perpendicular to G47.06 + 0.26. From the Bolocam Galactic Plane Survey (BGPS) catalog, we found nine BGPS sources in G47.06 + 0.26, that appear to these sources have sufficient mass to form massive stars. We obtained that the clump formation efficiency (CFE) is similar to 18% in the filament. Four infrared bubbles were found to be located in, and adjacent to, G47.06 + 0.26. Particularly, infrared bubble N98 shows a cometary structure. CO molecular gas adjacent to N98 also shows a very intense emission. HII regions associated with infrared bubbles can inject the energy to surrounding gas. We calculated the kinetic energy, ionization energy, and thermal energy of two HII regions in G47.06 + 0.26. From the GLIMPSE I catalog, we selected some Class I sources with an age of similar to 10(5) yr, which are clustered along the filament. The feedback from the HII regions may cause the formation of a new generation of stars in filament G47.06 + 0.26.
Keywordstars: formation stars: early-type ISM: individual objects: G47.06+0.26 ISM: individual objects: N98 HII regions
DOI10.1051/0004-6361/201629189
WOS KeywordDUST CONTINUUM EMISSION ; BUBBLING GALACTIC DISK ; YOUNG STELLAR OBJECTS ; MASSIVE STARS ; MILKY-WAY ; FORMING REGIONS ; DATA RELEASE ; PLANE SURVEY ; SPIRAL ARMS ; FRAGMENTATION
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000419994200011
PublisherEDP SCIENCES S A
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22167
Collection中国科学院紫金山天文台
Corresponding AuthorXu, Jin-Long
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
3.Tibet Univ, Lhasa 850000, Tibet, Peoples R China
4.Purple Mt Observ, Qinghai Stn, Delingha 817000, Peoples R China
5.NAOC TU Joint Ctr Astrophys, Lhasa 850000, Peoples R China
6.Chinese Acad Sci, Key Lab Radio Astron, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Xu, Jin-Long,Xu, Ye,Zhang, Chuan-Peng,et al. Gas kinematics and star formation in the filamentary molecular cloud G47.06+0.26[J]. ASTRONOMY & ASTROPHYSICS,2018,609:10.
APA Xu, Jin-Long.,Xu, Ye.,Zhang, Chuan-Peng.,Liu, Xiao-Lan.,Yu, Naiping.,...&Ju, Bing-Gang.(2018).Gas kinematics and star formation in the filamentary molecular cloud G47.06+0.26.ASTRONOMY & ASTROPHYSICS,609,10.
MLA Xu, Jin-Long,et al."Gas kinematics and star formation in the filamentary molecular cloud G47.06+0.26".ASTRONOMY & ASTROPHYSICS 609(2018):10.
Files in This Item:
File Name/Size DocType Version Access License
2018-IR-23.pdf(2150KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xu, Jin-Long]'s Articles
[Xu, Ye]'s Articles
[Zhang, Chuan-Peng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xu, Jin-Long]'s Articles
[Xu, Ye]'s Articles
[Zhang, Chuan-Peng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xu, Jin-Long]'s Articles
[Xu, Ye]'s Articles
[Zhang, Chuan-Peng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2018-IR-23.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.